Field Milk-Vetch
Astragalus agrestis
Last reviewed: June 2026
Field Milk-Vetch (Astragalus agrestis) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org, last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
4"–12" H × 4"–12" W
Bloom
May, Jun, Jul
Native to
CA, CO, IA, ID and 11 more states
Pollinators
bees
Browse plants for this ecoregion
Field milkvetch is a low-growing native wildflower that forms compact clumps with delicate compound leaves and small purple or white pea-like flowers. This drought-tolerant perennial blooms from May through July and goes dormant in winter. It thrives in full sun and requires minimal watering once established.
In an HOA neighborhood
Field Milk-Vetch takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Very wild appearance resembles weeds
- Dies back completely in winter leaving bare spots
- Small size and informal growth habit don't meet typical landscaping standards
Wildlife value
This plant provides nectar for native bees and other small pollinators during its extended bloom period. As a member of the legume family, it also helps fix nitrogen in the soil.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Field Milk-Vetch fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.